Home / 198,507.09-273,908.94-117,932.55

Finding the Fourth Proportional to 198,507.09, 273,908.94 and 117,932.55

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Solution

The fourth proportional to 198,507.09, 273,908.94 and 117,932.55 is: 162,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,507.09 : 273,908.94 = 117,932.55 : x
  2. Step 2: Convert to fraction form
    198,507.09/273,908.94 = 117,932.55/x
  3. Step 3: Cross multiply
    198,507.09x = 273,908.94 × 117,932.55
  4. Step 4: Simplify right side
    198,507.09x = 32,302,779,762.00
  5. Step 5: Solve for x
    x = 32,302,779,762.00/198,507.09
  6. Step 6: Final answer
    x = 162,728.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.